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Australia
Lake Giles Magnetite (Moonshine) Project (Lake Giles Hematite (Ularring) Project)

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 Location:
450 km NE from Perth, Western Australia, Australia
  Project Contacts:
Suite G03, 555 Coronation Drive
PO Box 1148 Milton, QLD 4064
Toowong
Queensland, Australia
4066
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Costs & Financials
  • Fleet
  • Personnel
  • Filings & News
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Overview

StagePermitting
Mine TypeOpen Pit
Commodities
  • Iron Ore
Mining Method
  • Truck & Shovel / Loader
Mine Life25 years (as of Jan 1, 2022)
The Lake Giles Iron Project comprises the Moonshine Magnetite Project and the Ularring Hematite Project.

The Lake Giles Project consists of a series of Banded Iron Formation (BIF) hematite and magnetite prospects. The NI43-101 Technical Report (announced on October 1, 2020) covers the mineral resource and preliminary economic assessment (PEA) of the magnetite mineralisation of the Moonshine and Moonshine North prospects, completed by Snowden and the hematite resources of the Ularring project completed by CSA Global.

Owners

Source: p. 11,22
CompanyInterestOwnership
Macarthur Minerals Ltd. 100 % Indirect
The Lake Giles Project area comprises 15 Mining Leases which are all held by Macarthur Iron Ore Pty Ltd (MIO), a 100% owned subsidiary of Macarthur Minerals Limited (MMS).

Contractors

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Deposit Type

  • Banded iron formation

Summary:

Macarthur’s tenements cover a portion of the Yerilgee Greenstone Belt which is over 80 km in length and up to 10 km wide and lies within the Southern Cross Province of the Yilgarn Craton. The Yilgarn Craton consists of multiple lenticular greenstone belts surrounded by variably foliated gneissic granitoids.

The greenstone belts consist of metamorphosed ultramafic, mafic and sediments, including BIF which are Archean in age and are commonly intruded by mafic, intermediate and granitic rocks.

The parts of the north-northwest trending Yerilgee greenstone belt covered by the Project tenements comprise a layered succession of Archean rocks. At the interpreted base of the succession is a sequence of high-magnesium basalt flows more than 1 km thick overlain by komatiitic ultramafic volcanic rocks with narrow interflow BIFs and in some cases, other sedimentary rocks. High-magnesium basalt lavas with occasional interflow BIFs overlain, possibly unconformably, by sedimentary rocks (cherty, silicified, pyritic and graphitic) are interpreted to form the top of this sequence. In places, gabbroic sills interpreted to be co-magmatic with the upper high-magnesium basalts, have been intruded into the lower mafic and ultramafic lavas. The elongated lens shaped Yerilgee belt is bounded by major north-northwest trending fault/shear zones. The iron ore mineralisation consists of secondary pisolite mineralization, primary magnetite mineralization associated with un-oxidized B ........

Mining Methods

  • Truck & Shovel / Loader

Summary:

The Moonshine and Moonshine North pits will be mined using conventional open pit mining methods based on 350-400 t class hydraulic excavators loading 180 t class rear dump trucks. The operation is proposed using experienced mining contractors with Macarthur (the Owner) maintaining orebody definition, quality control and medium to long term mine planning functions and management. The mining services include:

• Supply of personnel, equipment and mining infrastructure required for the mining services excluding diesel fuel which is to be supplied by the Owner.
• Mobilisation of buildings, equipment, and personnel.
• Clearing and stripping of suitable material from all disturbed areas into discrete stockpiles.
• Construction of haul roads and light vehicle service roads in the mine area and ongoing maintenance of haulroads.
• Construction of the Run-of-Mine (ROM) pad and skyway using bulk waste.
• Grade control drilling.
• Drilling and blasting of ore and waste on 10 m benches.
• Load and Haul utilising 350-400 t class excavators and 180 t class haul trucks mining on 5 m high flitches.
• Hauling waste to external waste dumps.
• Hauling ore to the ROM pad where it will be direct fed to the crusher ore placed onto a finger from skyway of stockpile adjacent to the ROM pad.
• Rehandle of ore from ROM fingers or adjacent stockpiles.
• Ongoing pit dewatering from in-pit sumps.

The desig ........

Crushing and Grinding
Source: Subscription required

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Processing

Flow Sheet: Subscription required

Summary:

- subscription is required.

Projected Production:

CommodityUnitsAvg. AnnualLOM
Iron kt 3,00074,000
All production numbers are expressed as concentrate.

Operational Metrics:

Metrics
Stripping / waste ratio  ......  Subscription required
Waste tonnes, LOM  ......  Subscription required
Ore tonnes mined, LOM  ......  Subscription required
Total tonnes mined, LOM  ......  Subscription required
Annual processing rate  ......  Subscription required
Annual mining rate  ......  Subscription required
Annual ore mining rate  ......  Subscription required
Mining scale, tpd  ......  Subscription required
* According to 2022 study.
Subscription required - Subscription is required.

Reserves at April 11, 2022:
A Davis Tube Mass Recovery (DTR MR) cut-off grade of 15% was applied prior to scheduling for 2022 reserves estimate.
Mineral Resources are reported from the block models above a DTR cut-off grade of 15%.

CategoryTonnage CommodityGrade
Proven 51.9 Mt Iron 30.6 %
Probable 184.7 Mt Iron 27.6 %
Proven & Probable 236.6 Mt Iron 28.2 %
Measured 53.9 Mt Iron 30.8 %
Indicated 218.7 Mt Iron 27.5 %
Measured & Indicated 272.5 Mt Iron 28.1 %
Inferred 449.1 Mt Iron 27.1 %

Commodity Production Costs:

CommodityUnitsAverage
Site cash costs (produced) Iron Ore USD  ......  Subscription required&nbs
Total cash costs Iron Ore USD  ......  Subscription required&nbs
Assumed price Iron Ore USD  ......  Subscription required&nbs
* According to 2022 study / presentation.
Subscription required - Subscription is required.

2022 Study Costs and Valuation Metrics :

MetricsUnitsLOM Total
Initial CapEx $M AUD  ......  Subscription required
Sustaining CapEx $M AUD  ......  Subscription required
Closure costs $M AUD  ......  Subscription required
Total OpEx $M AUD  ......  Subscription required
Total Taxes $M AUD  ......  Subscription required
Royalty payments $M AUD  ......  Subscription required
Gross revenue (LOM) $M AUD  ......  Subscription required
Pre-tax NPV @ 10% $M AUD  ......  Subscription required
Pre-tax NPV @ 8% $M AUD  ......  Subscription required
After-tax NPV @ 10% $M AUD  ......  Subscription required
After-tax NPV @ 8% $M AUD  ......  Subscription required
Pre-tax IRR, %  ......  Subscription required
After-tax IRR, %  ......  Subscription required
Subscription required - Subscription is required.

Proposed Heavy Mobile Equipment as of April 12, 2022:
HME TypeModelSizeQuantityLeased or
Contractor
Dozer (crawler) ....................... Subscription required Leased
....................... Subscription required ....................... Subscription required Leased
....................... Subscription required ....................... Subscription required Leased
....................... Subscription required ....................... Subscription required Leased
....................... Subscription required ....................... Subscription required ....................... Subscription required Leased
....................... Subscription required ....................... Subscription required Leased
....................... Subscription required ....................... Subscription required Leased
....................... Subscription required ....................... Subscription required Leased
....................... Subscription required ....................... Subscription required ....................... Subscription required ....................... Subscription required Leased
Subscription required - Subscription is required.

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required May 28, 2022
Subscription required - Subscription is required.

Corporate Filings & Presentations:

DocumentYear
Feasibility Study Report 2022
Press Release 2022
Press Release 2022
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
Subscription required - Subscription is required.

Subscription required - Subscription is required.

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